{
  "australia": {
    "Perth": "Australia/Perth",
    "Sydney": "Australia/Sydney",
    "Melbourne": "Australia/Melbourne",
    "Brisbane": "Australia/Brisbane",
    "Adelaide": "Australia/Adelaide",
    "Darwin": "Australia/Darwin",
    "Hobart": "Australia/Hobart"
  },
  "north_america": {
    "New York": "America/New_York",
    "Los Angeles": "America/Los_Angeles",
    "Chicago": "America/Chicago",
    "Denver": "America/Denver",
    "Toronto": "America/Toronto",
    "Vancouver": "America/Vancouver",
    "Mexico City": "America/Mexico_City"
  },
  "europe": {
    "London": "Europe/London",
    "Paris": "Europe/Paris",
    "Berlin": "Europe/Berlin",
    "Madrid": "Europe/Madrid",
    "Rome": "Europe/Rome",
    "Amsterdam": "Europe/Amsterdam",
    "Stockholm": "Europe/Stockholm",
    "Moscow": "Europe/Moscow"
  },
  "asia": {
    "Tokyo": "Asia/Tokyo",
    "Hong Kong": "Asia/Hong_Kong",
    "Singapore": "Asia/Singapore",
    "Beijing": "Asia/Shanghai",
    "Mumbai": "Asia/Kolkata",
    "Dubai": "Asia/Dubai",
    "Seoul": "Asia/Seoul",
    "Bangkok": "Asia/Bangkok"
  },
  "south_america": {
    "Sao Paulo": "America/Sao_Paulo",
    "Buenos Aires": "America/Argentina/Buenos_Aires",
    "Lima": "America/Lima",
    "Bogota": "America/Bogota",
    "Santiago": "America/Santiago"
  },
  "africa": {
    "Cairo": "Africa/Cairo",
    "Johannesburg": "Africa/Johannesburg",
    "Lagos": "Africa/Lagos",
    "Nairobi": "Africa/Nairobi"
  },
  "pacific": {
    "Auckland": "Pacific/Auckland",
    "Fiji": "Pacific/Fiji",
    "Honolulu": "Pacific/Honolulu",
    "Guam": "Pacific/Guam"
  },
  "utc": {
    "UTC": "UTC"
  },
  "_notes": {
    "format": "City Name -> IANA Timezone",
    "perth_details": "Perth: UTC+8, no DST, Western Australia",
    "usage": "Use list_timezones.py to search for additional cities"
  }
}